Tests

Tests to consider

skin scraping of lesion (mineral oil preparation)

Test
Result
Test

Useful to exclude scabies as an alternative diagnosis.

Result

negative

skin biopsy

Test
Result
Test

Biopsy is rarely indicated and is nonspecific (usually consistent with an arthropod bite reaction).

Result

nonspecific superficial and deep perivascular infiltrate often with prominent eosinophils

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